After the quarrel, I tried all my best to fix the misunderstanding between us, but all my efforts seemed _____.
—Forgotten something? I can keep an eye on your luggage if you want to go back and get it.—_______ Thank you all the same.
The Great wall is a well-known tourist attraction, _______ attracts millions of people home and abroad every year.
The manager will not permit the change in the product, nor _______ it a thought.
We tried to discourage him from going out in the storm, but he turned a deaf ear and went _______.
According to the school rules, no students carrying cell phones ______ be allowed to enter the campus.